So, let's take a look at what caused the Apple iPhone XS Max signal to be so bad!
How to realize network communication of Apple mobile phone
Before talking about the signal problem of Apple iPhone XS Max, it is necessary to talk about the network communication mode of Apple mobile phone.
Apple mobile phone is different from domestic mobile phones such as Samsung and Huawei. The baseband chip is not integrated into the processor, and the network communication is realized by plugging in the baseband chip. Why is there such a problem? Mainly because Apple's mobile phone uses self-developed A-series processors, but Apple does not have the strength to develop baseband chips, so it has to cooperate with Qualcomm.
There are many problems in this way:
The issue of risk will be elaborated later, which is also the main reason for the poor signal of Apple iPhone XS Max.
Apple iPhone XS Max Signal Testing Experiment
Then, as mentioned above, Apple has been dissatisfied with the layering scheme of Qualcomm baseband chips. Contacting Intel privately, trying to completely kick Qualcomm out, Qualcomm took Apple to court in a rage. Helpless, Intel's baseband chip didn't live up to expectations, which led to big problems in the signals of Apple's iPhone XR, iPhone XS and iPhone XS Max. Helpless, Apple had to reconcile with Qualcomm. As a result, the launch of Apple's 5G mobile phone was seriously behind domestic mobile phone manufacturers.
So, how bad is the iPhone XS Max signal using Intel baseband chips?
Well-known domestic digital evaluation institutions have done experiments, taking the only base station on the island as a reference, and the cruise ship runs in the opposite direction. The tested models include the flagship models of Samsung and Huawei and three models of Apple in the same period. As a result, the first one to lose the signal was this Apple iPhone XS Max phone. It can be seen that not only the comparison of other mobile phones in the same industry, but also the comparison of Apple's own mobile phones, iPhone XS Max is also the one with the worst signal.
On the actual performance of apple iPhone XS Max
So what problems will Apple iPhone XS Max encounter in actual use?
In the same place, other people's cell phone signals are full, but your signals are only two or three; The signal is full, but SMS and WeChat can't receive the message, and there are often problems in message sending; After getting in and out of the elevator, others can access the network faster, but you can't connect for a long time; Entering the underground parking lot, signals and calls become extravagant hopes.
I can't believe this is Apple's flagship mobile phone with a price of nearly 10,000 yuan!
Does Apple iPhone XS Max have the same signal problem?
Welcome to leave a message to discuss, like a little attention.
Intel said: iPhone xs max signal difference is not a baseband problem, but an antenna problem! I don't carry this pot!
Some time ago, an evaluation agency made an evaluation. The signals of Huawei mate 20 pro, Samsung note 9 and iPhone xs max were tested on outlying islands. As a result, iPhone xs max became the worst performer, with Huawei mate 20 pro and Samsung note9 having outstanding signals.
IPhone xs max is not only the one with the worst signal in the iPhone XS series, but also performs poorly in the actual signal test. So, is the signal difference a baseband problem or an antenna problem?
I think there are both. IPhone XS max uses PMB9955 baseband (model XMM7560), which is Intel's first LTE baseband with 14nm technology. Its downlink speed is 1Gbps, which is lower than Qualcomm X20 baseband and the level of last year's X 16 LTE baseband. Uplink upgrade to Cat 13 level, with the highest rate of 225Mbps, surpassing Qualcomm X20. So in actual comparison, Intel is really like Qualcomm baseband, which is one of the reasons why the previous iPhone has better signal than the current iPhone.
Of course, another problem is that this phone is equipped with 4x4 MIMO. When the four antennas have the same frequency, it is difficult to solve the isolation problem, which also leads to smaller antenna size and worse antenna performance.
Therefore, the 4G network of this mobile phone is unstable. Although this mobile phone indirectly improves the signal of the mobile phone through iOS upgrade, antenna problems and baseband problems restrict it and the problem cannot be solved.
It is very important for mobile phone to access the Internet. The quality of the signal is reflected in the same environment. Others operate like streams, while you wait for the page buffer. Nearly 10,000 yuan of the latest iPhone XS MAX is often complained by consumers that the signal is not good and the network speed is very slow. IPhone XS MAX's 4G network is very slow. One of the reasons is that the latest iPhone uses Intel baseband XMM 7560 technology, which is not good. Compared with Qualcomm's X20 LTE and Huawei's Cat.2 1, there is still a gap. Second, the antenna design is also problematic. Now Apple is also trying to improve this problem through software updates, which is a slight progress.
Apple gave up Qualcomm and joined forces with Intel.
IPhone XS MAX series is the first time that Apple completely abandoned Qualcomm baseband and switched to Intel. Although Intel has also invested a lot of money in 4G baseband, it is still not as good as Qualcomm. Moreover, this time, the iPhone XS MAX also specially added the 4x4 MIMO antenna design, which doubled the number of antennas on the basis of the previous generation, but Apple obviously did not do this design well. Two antennas are added to enhance the mobile phone signal, but the design difficulty is doubled and the signal isolation between antennas is very strict. Obviously, Apple didn't handle it well. There are some problems in baseband and antenna, which leads to poor signal of iPhone XS MAX.
Compare the measured network speeds of Qualcomm and Huawei.
There are special experiments to compare the speed of iPhone XS MAX. First of all, by comparing iPhone XS MAX with Samsung Galaxy NOTE 9, the download speed of NOTE 9 is 65.2Mbps, which is slightly higher than iPhone XS MAX's 62.9Mbps, but the upload speed of NOTE 9 is almost twice that of iPhone XS MAX. Now mobile phones receive data in both directions at the same time, and the huge gap in upload speed will also affect the actual network speed.
Then compare iPhone XS MAX and Huawei MATE 20. Under the same mobile data network in China, the download speed of iPhone XS MAX is 3. 13m/s, and the upload speed is 0.72m/s. Huawei MATE 20 downloads 7. 17m/s, and uploads 6.38m/s, which shows that the gap is very large. The baseband Cat.2 1 of Kirin 980 processor used by Huawei Mate 20, called "4.5G" network, is still very powerful.
solution
As early as the launch of iPhone XS MAX, the "signal gate" broke out, and many people reflected this problem. Apple also set up an investigation team and then improved it by upgrading the IOS system. Now I feel a little better. After all, hardware problems cannot be completely solved by software. However, it is recommended to use a single SIM card instead of a secondary card, which will reduce the interference between the two cards. Or change operators, it is also possible to improve.
At present, it seems that Apple's baseband problem has not been well solved, and it will be sued by Qualcomm, and then it may cooperate with Qualcomm again, which will improve.
Iphone xs max 4G signal is poor, which is a problem at the chip level, not a software solution. In the past, iphone cooperated with Qualcomm, using Qualcomm's baseband, and there was no "signal gate" incident. After quarreling with Qualcomm's patent lawsuit, the iphone used Intel baseband in an all-round way, and problems began to appear. Iphone xs max uses Intel's PMB9555 baseband, and the RF transceiver that affects the signal is also Intel's. Let's take a closer look.
Intel PMB9955 baseband of "The Root of All Evil"
Intel RF transceiver PMB5762
How to treat iphone xs max 4G signal difference? Please leave a message in the comments section to discuss.
If you need more help, please pay attention by private letter, thank you.
It's really slow, and there is often no signal.
Slow enough to change the phone.
This stupid mobile phone, a 10,000-yuan mobile phone can't even do the most basic signal, which is really rubbish.
I'm really disappointed with Apple's cell phone signal this time.
Since changing xs max, the mobile phone still displays 4G without signal. When you turn on the flight mode and then turn it off, you know that there is really no signal. Is there a signal? Didn't you even count B for this stupid mobile phone? Do I have to test it manually?
It's because Apple uses Intel's baseband instead of Qualcomm's, so the signal is worse this time, even worse than my iPhone 7P, but can't you choose a better baseband? Can't it be debugged and put into the market? This kind of mobile phone, which can't even talk and surf the Internet, is finally a brick! !
I am very disappointed with Apple this time! !
1. Upgrade the new system.
The new system upgrade will definitely optimize many mobile phone problems. Moreover, Apple has been trying to solve the problem of mobile phone signal in system update, so when it comes to mobile phone system update, I suggest you update it without special circumstances. It may be helpful to improve the cell phone signal.
2. Don't use a metal phone case.
Many friends like to use mobile phone cases to protect their mobile phones, but some metal mobile phone cases will interfere with mobile phone signals, so it is recommended that you do not use them.
3. Baseband problem
Apple phones are equipped with two kinds of network baseband, one is Intel and the other is Qualcomm.
Qualcomm's baseband network is better and more stable.
Intel's baseband network is bad.
3.
What's wrong with the slow 4G network of iPhoneXSMax? What should I do? For this Apple mobile phone with a price of more than 10,000 yuan, there have been some problems such as poor outbound signal quality and slow network speed since its release. What are the root causes of these problems?
Let's take a look, one of the factors that have the greatest influence on the signal strength of smart phones is the watchband used by mobile phones. The latest Apple xsmax uses Intel's XMM7560 baseband, while the previous Apple phones used Qualcomm's baseband, and this gap came out.
As for the construction of signal baseband and base station, I personally think that Qualcomm is far better than Intel baseband, so the signal quality of previous Apple mobile phones is still much better than now.
We have tested the baseband speeds of Apple xsmax, Huawei cat.2 1 and Qualcomm X20 LTE. Qualcomm and Huawei's baseband performance is far stronger than Intel's, so Apple's mobile phone signal is not good now, mainly because Intel's baseband is not good.
As for the solution, Apple may improve the signal through system optimization and upgrade, but this is still limited because of hardware defects and cannot be improved through system optimization. Then how do you use the Apple cell phone signal? You can leave a message below and discuss it together!
Due to the disagreement between Apple and Qualcomm, Apple's new iPhone uses Intel baseband, and Intel's baseband performance is far worse than that of Qualcomm, so it is normal that the signal is not good, which is a hardware defect. I hope Apple can improve through system optimization and upgrade!
IphoneXs and iphoneXsMax have been on the market for almost a year, but their popularity is still unabated, and with the collapse of prices, the popularity of these two mobile phones has once again "made a comeback". Because Apple's mobile phone no longer uses Qualcomm baseband but uses Intel baseband, every time Apple's new machine is released, it will be exposed that the mobile phone signal is weak, even worse than the previous generation.
When it comes to cell phone signals, the most relevant thing is naturally baseband. At present, only Apple processor adopts the form of external baseband, and other processors directly integrate baseband into the chip, so the performance of Apple processor is also powerful for some reasons. Qualcomm is the best baseband company at present, and the cell phone signal equipped with Opteron processor is very good. Qualcomm also claimed to buy baseband and transmitting chips. In addition to Qualcomm, the baseband developed by Intel, Huawei and Samsung in MediaTek is also very strong, which is similar on the whole.
So is the iphoneXsMax signal using Intel baseband really as unstable as many people say? Recently, some netizens conducted signal tests on three mobile phones, namely, iphoneXsMax, iphoneX and Samsung S9, to see how the signal of iphoneXsMax is.
First connect these two phones to the same wifi to test the network delay. Although Samsung S9 completed the network test first, we can see that the smallest network delay is iphoneXsMax, followed by iphoneX, and finally Samsung S9. It can be seen that when the mobile phone is connected to the same wifi, the speed of the iphoneXsMax is still very powerful. When dealing with some large-scale online games, the game will not get stuck because the network speed suddenly slows down.
Three mobile phones are connected to the same wifi and download the same 1080P HD video. In contrast, the download speed of iphoneXsMax is the fastest, followed by iphoneX and Samsung S9, so under the same wifi, the network stability and accelerated optimization of iphoneXsMax are very good. Of course, connecting to the same wifi can't directly display the signal of iphoneXsMax. Finally, the speed and stability of three mobile phone networks are compared.
Also start mobile data to download the same HD video. The result of comparison is that Samsung S9 has the fastest and most stable network speed, followed by iPhone X. Generally speaking, the signal of iPhone X will naturally be better and more stable from generation to generation, so iPhone X is not as bad as rumored.
This is not good. It doesn't work on the street My daughter-in-law always asks me to pay.